13/2026
EAST COAST OF ENGLAND
THAMES ESTUARY
SUNK PRECAUTIONARY AREA
SUNK INNER LIGHT FLOAT (ALL Vol.A2172, ALRS 51930)
Latitude 51° 51.170’N., Longitude 001° 34.400’E
Amendment:
On or about the 13th June 2026, for a period of approximately 6 months, the Sunk Inner Light Float will be replaced with a Lightvessel, as follows:-
Light Characteristics: Fl (5) 15s – Nominal Range of 15nm Exhibited during Nighttime and Fog.
Hazard Warning Signal: Horn (1) 30s
AIS Transmission: MMSI 992351027 “Sunk Inner”
Racon: Morse “T” X&S Band
Further notice will be given when the Light Float is re-established.
By Order,
Captain Des Donworth
Director of Navigational Requirements and Policy
Trinity House,
Tower Hill,
London,
EC3N 4DH
2nd June 2026